flac

include/MDE/Sound/Sound.h

@@ -46,6 +46,7 @@ struct _MDESound {
 
 extern MDESoundDriver MDESoundDriverMP3;
 extern MDESoundDriver MDESoundDriverVorbis;
+extern MDESoundDriver MDESoundDriverFLAC;
 
 MDESound MDESoundOpen(const char* path);
 

sound/drv_flac.c

@@ -0,0 +1,77 @@
+#include <MDE/Sound/Sound.h>
+#include <MDE/Core/String.h>
+
+#define DR_FLAC_IMPLEMENTATION
+#include <dr_flac.h>
+
+static void meta(void* user, drflac_metadata* metadata){
+	MDESoundContext ctx = user;
+
+	if(metadata->type == DRFLAC_METADATA_BLOCK_TYPE_VORBIS_COMMENT){
+		const char* comment;
+		drflac_vorbis_comment_iterator it;
+		drflac_uint32 len;
+
+		drflac_init_vorbis_comment_iterator(&it, metadata->data.vorbis_comment.commentCount, metadata->data.vorbis_comment.pComments);
+		while((comment = drflac_next_vorbis_comment(&it, &len)) != NULL){
+			char* s = malloc(len + 1);
+			char* p;
+			memcpy(s, comment, len);
+			s[len] = 0;
+			p = strchr(s, '=');
+			if(p != NULL) {
+				p[0] = 0;
+				if(strcasecmp(s, "TITLE") == 0) {
+					ctx->title = MDEStringDuplicate(p + 1);
+				} else if(strcasecmp(s, "ALBUM") == 0) {
+					ctx->album = MDEStringDuplicate(p + 1);
+				} else if(strcasecmp(s, "ARTIST") == 0) {
+					ctx->artist = MDEStringDuplicate(p + 1);
+				} else if(strcasecmp(s, "GENRE") == 0) {
+					ctx->genre = MDEStringDuplicate(p + 1);
+				} else if(strcasecmp(s, "TRACKNUMBER") == 0) {
+					ctx->track = atoi(p + 1);
+				}
+			}
+
+			free(s);
+		}
+	}
+}
+
+static MDESoundContext flac_open(const char* path) {
+	MDESoundContext ctx = malloc(sizeof(*ctx));
+	memset(ctx, 0, sizeof(*ctx));
+
+	ctx->opaque = drflac_open_file_with_metadata(path, meta, ctx, NULL);
+	if(ctx->opaque == NULL){
+		free(ctx);
+		return NULL;
+	}
+
+	ctx->sample_rate = ((drflac*)ctx->opaque)->sampleRate;
+	ctx->channels = ((drflac*)ctx->opaque)->channels;
+	ctx->frames = ((drflac*)ctx->opaque)->totalPCMFrameCount;
+
+	return ctx;
+}
+
+static void flac_close(MDESoundContext ctx) {
+	drflac_close(ctx->opaque);
+	free(ctx);
+}
+
+static int flac_read(MDESoundContext ctx, short* out, int frames) {
+	return drflac_read_pcm_frames_s16(ctx->opaque, frames, out);
+}
+
+static void flac_seek(MDESoundContext ctx, int frames) {
+	drflac_seek_to_pcm_frame(ctx->opaque, frames);
+}
+
+static MDESoundDriverRec rec = {
+    flac_open,
+    flac_close,
+    flac_read,
+    flac_seek};
+MDESoundDriver MDESoundDriverFLAC = &rec;

sound/sound.c

@@ -15,6 +15,7 @@ MDESound MDESoundOpen(const char* path) {
 
 	TRY_DRIVER(MP3);
 	TRY_DRIVER(Vorbis);
+	TRY_DRIVER(FLAC);
 
 	if(sound->context == NULL) {
 		free(sound);